Re: [Qgis-user] Qgis-user Problem splitting polygons with line layer
Hi Bernd, That sounds like you may have a topology problem, like self intersection. Have you tried 'Vector Geometry': 'Fix Geometries' in the Processing Toolbox?In the same place there is also a 'Check validity' tool, which would find the problems for you and then you could fix them manually. The tool gives you options for different standards of validity.Another possibility is that you have mixed geometry types. You might be able to fix that with GRASS: v.type or Processing:'Vector geometry': 'Convert geometry type' In PostGIS you would check if the imported geometry column is SELECT id FROM dwg_table WHERE NOT ST_IsSimple(geom)or: SELECT ST_GeometryType(geom) FROM dwg_table GROUP BY ST_GeometryType(geom). -Thayer On Monday, December 7, 2020, 01:58:04 PM EST, qgis-user-requ...@lists.osgeo.org wrote: Date: Mon, 7 Dec 2020 19:57:19 +0100 From: Bernd Vogelgesang To: qgis-user Subject: [Qgis-user] Problem splitting polygons with line layer Message-ID: <82a7c751-29c2-9906-25e6-903897986...@gmx.de> Content-Type: text/plain; charset="utf-8"; Format="flowed" Hi, I need to split a polygon with a line layer (representing parcel boundaries ). Using "Split with lines", the process always stops at 12% and there is no progress visible. The lines are imported from a CAD dwg as a CompoundCurveZ (never had to do with this before) My goal is to "cut" the polygon, so I retrieve parcels of a specific area again. With other line layers from this dwg ist no problem spliting the polygon, only the parcel boundaries won't work. Does anybody have an idea what could be the cause of this problem, what I other tools I could try or if I have to proprocess the lines beforehand with other tools? Hoping for enlightment (and having a deadline tomorrow) Bernd ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [QGIS-it-user] script basato su Statistiche Zonali
Amedeo Fadini-2 wrote > Non mi pare sia in python, poiché si tratta di un algoritmo di QGIS > > https://github.com/qgis/QGIS/blob/release-3_16/src/analysis/processing/qgsalgorithmzonalstatisticsfeaturebased.cpp Comunque nella versione 3.10.x di QGIS è ancora in Python. Puoi trovare il codice sorgente nel repository GitHub https://github.com/qgis/QGIS/blob/release-3_10/python/plugins/processing/algs/qgis/ZonalStatistics.py ma anche, almeno su Windows, direttamente nella cartella di installazione di QGIS (per esempio in C:\Program Files\QGIS 3.10\apps\qgis\python\plugins\processing\algs\qgis\ZonalStatistics.py). A presto. Andrea -- Sent from: http://osgeo-org.1560.x6.nabble.com/QGIS-Italian-User-f5250612.html ___ QGIS-it-user mailing list QGIS-it-user@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/qgis-it-user
[Qgis-user] Problem splitting polygons with line layer
Hi, I need to split a polygon with a line layer (representing parcel boundaries ). Using "Split with lines", the process always stops at 12% and there is no progress visible. The lines are imported from a CAD dwg as a CompoundCurveZ (never had to do with this before) My goal is to "cut" the polygon, so I retrieve parcels of a specific area again. With other line layers from this dwg ist no problem spliting the polygon, only the parcel boundaries won't work. Does anybody have an idea what could be the cause of this problem, what I other tools I could try or if I have to proprocess the lines beforehand with other tools? Hoping for enlightment (and having a deadline tomorrow) Bernd ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [QGIS-it-user] script basato su Statistiche Zonali
Il codice di GitHub è quello che mi serviva. Grazie a tutti Il giorno lun 7 dic 2020 alle ore 16:59 Andrea Giudiceandrea < andreaer...@libero.it> ha scritto: > Amedeo Fadini-2 wrote > > Non mi pare sia in python, poiché si tratta di un algoritmo di QGIS > > > > > https://github.com/qgis/QGIS/blob/release-3_16/src/analysis/processing/qgsalgorithmzonalstatisticsfeaturebased.cpp > > Comunque nella versione 3.10.x di QGIS è ancora in Python. > > Puoi trovare il codice sorgente nel repository GitHub > > https://github.com/qgis/QGIS/blob/release-3_10/python/plugins/processing/algs/qgis/ZonalStatistics.py > ma anche, almeno su Windows, direttamente nella cartella di installazione > di > QGIS (per esempio in C:\Program Files\QGIS > 3.10\apps\qgis\python\plugins\processing\algs\qgis\ZonalStatistics.py). > > A presto. > > Andrea > > > > -- > Sent from: > http://osgeo-org.1560.x6.nabble.com/QGIS-Italian-User-f5250612.html > ___ > QGIS-it-user mailing list > QGIS-it-user@lists.osgeo.org > https://lists.osgeo.org/mailman/listinfo/qgis-it-user > ___ QGIS-it-user mailing list QGIS-it-user@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/qgis-it-user
Re: [QGIS-it-user] script basato su Statistiche Zonali
Non mi pare sia in python, poiché si tratta di un algoritmo di QGIS https://github.com/qgis/QGIS/blob/release-3_16/src/analysis/processing/qgsalgorithmzonalstatisticsfeaturebased.cpp Amedeo Il giorno lun 7 dic 2020 alle ore 16:24 Giacomo Fontanelli < giacomofontanell...@gmail.com> ha scritto: > Salve > > vorrei modificare lo script di processing che in Italiano si chiama > "Statistiche Zonali", in poche parole si tratta di quello che ti permette > di calcolare le statistiche di un raster al di sotto di alcuni poligoni di > un vettoriale. > > Per fare ciò però dovrei dare un'occhiata a come lo script è fatto (sono > un principiante). > > Sapete dove possa trovare il codice python? > > Grazie > ___ > QGIS-it-user mailing list > QGIS-it-user@lists.osgeo.org > https://lists.osgeo.org/mailman/listinfo/qgis-it-user > ___ QGIS-it-user mailing list QGIS-it-user@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/qgis-it-user
[QGIS-it-user] script basato su Statistiche Zonali
Salve vorrei modificare lo script di processing che in Italiano si chiama "Statistiche Zonali", in poche parole si tratta di quello che ti permette di calcolare le statistiche di un raster al di sotto di alcuni poligoni di un vettoriale. Per fare ciò però dovrei dare un'occhiata a come lo script è fatto (sono un principiante). Sapete dove possa trovare il codice python? Grazie ___ QGIS-it-user mailing list QGIS-it-user@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/qgis-it-user
[Qgis-user] QGIS-Server Installation/Configuration, Fedora Rawhide
Hi,
I am trying to install QGIS-Server 3.16 on a Fedora Rawhide Server.
Packages "qgis-server" and "python3-qgis" have been downloaded and
installed, without any apparent issues.
I am following the guide at
https://docs.qgis.org/3.16/en/docs/server_manual/getting_started.html#installation-on-debian-based-systems
(yes, I know it is for Debian systems, but no Fedora guide found thus far).
On the first steps, it is said that running the file
"/usr/lib/cgi-bin/qgis_mapserv.fcgi" should give the following output:
QFSFileEngine::open: No file name specifiedWarning 1: Unable to
find driver ECW to unload from GDAL_SKIP environment variable.Warning
1: Unable to find driver ECW to unload from GDAL_SKIP environment
variable.Warning 1: Unable to find driver JP2ECW to unload from
GDAL_SKIP environment variable.Warning 1: Unable to find driver ECW to
unload from GDAL_SKIP environment variable.Warning 1: Unable to find
driver JP2ECW to unload from GDAL_SKIP environment
variable.Content-Length: 206Content-Type: text/xml; charset=utf-8
https://www.opengis.net/ogc;>
Service unknown
or unsupported
I have substituted the Fedora path & file
(/usr/libexec/qgis/qgis_mapserv.fcgi), and running this results in:
[root@servnet /]# /usr/libexec/qgis/qgis_mapserv.fcgi
Application path not initialized
Application path not initialized
- 'VirtualXPath' [XML Path Language - XPath]
- 'VirtualXPath' [XML Path Language - XPath]
- 'VirtualXPath' [XML Path Language - XPath]
- 'VirtualXPath' [XML Path Language - XPath]
- 'VirtualXPath' [XML Path Language - XPath]
QFSFileEngine::open: No file name specified
- 'VirtualXPath' [XML Path Language - XPath]
Content-Length: 102
Content-Type: application/json
Server: QGIS FCGI server - QGIS version 3.16.1-Hannover
Status: 400
[{"code":"Bad request error","description":"Requested URI does not match
any registered API handler"}] - 'VirtualXPath' [XML Path Language - XPath]
- 'VirtualXPath' [XML Path Language - XPath]
- 'VirtualXPath' [XML Path Language - XPath]
Segmentation fault (core dumped)
[root@servnet /]#
My guess is that there is a missing dependency that did not get picked up
in the installation of the Fedora package, however I am not able to
identify what it may be.
Has anyone successfully installed 3.16 QGIS-Server on Fedora?
Any guidance or tips as to what may be missing and/or causing this error
would be greatly appreciated.
Cheers,
Garth.
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Re: [Qgis-user] transfer single points from one point-layer to another?
On 12/7/2020 7:39 AM, Nicolas Cadieux wrote: Hi, Regular Cut and paste crtl-c and crtl-v shortcuts work. Don’t forget to make sure the “receiving” layer is in editing mode (yellow pen). You must select that layer, and then select the yellow button and that this layer is editable like a .shp or like a geopackage. (Ex: A csv can be read but not written to.). Data will follow if the database match perfectly. If not, you may have missing data (unless this has been changed.) The Edit menu also offers the option of pasting to a new layer (Paste Features As) so that you don't have to put them in an existing layer. There is no default shortcut key for this choice. ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [Qgis-user] transfer single points from one point-layer to another?
Hi, Regular Cut and paste crtl-c and crtl-v shortcuts work. Don’t forget to make sure the “receiving” layer is in editing mode (yellow pen). You must select that layer, and then select the yellow button and that this layer is editable like a .shp or like a geopackage. (Ex: A csv can be read but not written to.). Data will follow if the database match perfectly. If not, you may have missing data (unless this has been changed.) Nicolas Cadieux https://gitlab.com/njacadieux > Le 7 déc. 2020 à 08:52, Andreas Neumann a écrit : > > > Hi Stef, > > Yes, possible. But: data is independent of project. So you basically copy > data from one database or file to another one - regardless of the projects > referencing these data sources. So other projects linking to the same > database or file will also see the updates. > > > > First, select objects in one layer, then press "copy", then make the other > layer active and press "paste". > > Andreas > > > >> On Mon, 7 Dec 2020 at 12:43, ent-ar...@gmx.de wrote: >> Hello list :-) >> >> is it possible to transfer a certain amount of points from one project >> to another? >> Together with all the informations? >> >> Many regards, >> Stef >> >> ___ >> Qgis-user mailing list >> Qgis-user@lists.osgeo.org >> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user >> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > > > -- > > -- > Andreas Neumann > QGIS.ORG board member (treasurer) > ___ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [QGIS-it-user] Manualistica e moduli avanzati
Buongiorno, ho un problema che non mi pare sia mai stato trattato in lista. La lista dei progetti recenti non si aggiorna da tempo, né nella schermata dopo l'avvio né nel menù a tendina. Uso la versione 3.16.1-Hannover su Ubuntu 20.04.1 LTS Successo già? Non mi pare per altro di poter far corrispondere l'inizio del problema con qualche aggiornamento. Grazie per i consigli. Iacopo Il giorno lun, 07/12/2020 alle 11.00 +0100, Studio Multiservice s.s. ha scritto: > Buongiorno > > scusate il ritardo ma ho chiesto se possibile inoltrare gli appunti > del corso. > > Eccoli qui > > http://www.geolab.polimi.it/copernicus-e-la-gestione-intelligente-delle-aree-urbane/ > > > Alberto > > > Il giorno ven 20 nov 2020 alle ore 09:46 luca barbadoro < > luca.barbad...@gmail.com> ha scritto: > > Ciao, > > > > se possibile sarei interessato anche io alle slides e appunti su > > webinar per utilizzo Copernicus Climate Data Store. > > > > sempre sul tema sto raccogliendo del materiale (in parte relativo a > > QGIS) da altri webinars, > > > > ad esempio sto seguento quelli della NASA: > > > > https://appliedsciences.nasa.gov/join-mission/training/english/satellite-remote-sensing-urban-heat-islands > > > > ed ho trovato utile sul tema LCZ il progetto http://www.wudapt.org/ > > (sezione Create LCZ Training Areas) > > > > > > > > sarebbe interessante trovare un "contenitore" per poter condividere > > le varie info sul tema Remote Sensing e strumenti utili qgis o > > comunque Open Spurce (che è veramente un tema ampio) > > > > > > > > Luca Barbadoro > > __ > > > > Phone: 3337492444 > > E-mail: luca.barbad...@gmail.com > > Skype: lucabarbadoro > > __ > > Il 20/11/20 09:10, Studio Multiservice s.s. ha scritto: > > > Copernicus Climate Data Store > > > > ___ > > QGIS-it-user mailing list > > QGIS-it-user@lists.osgeo.org > > https://lists.osgeo.org/mailman/listinfo/qgis-it-user > > ___ > QGIS-it-user mailing list > QGIS-it-user@lists.osgeo.org > https://lists.osgeo.org/mailman/listinfo/qgis-it-user ___ QGIS-it-user mailing list QGIS-it-user@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/qgis-it-user
Re: [Qgis-user] transfer single points from one point-layer to another?
Hi Stef, Yes, possible. But: data is independent of project. So you basically copy data from one database or file to another one - regardless of the projects referencing these data sources. So other projects linking to the same database or file will also see the updates. [image: grafik.png] First, select objects in one layer, then press "copy", then make the other layer active and press "paste". Andreas On Mon, 7 Dec 2020 at 12:43, ent-ar...@gmx.de wrote: > Hello list :-) > > is it possible to transfer a certain amount of points from one project > to another? > Together with all the informations? > > Many regards, > Stef > > ___ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > -- -- Andreas Neumann QGIS.ORG board member (treasurer) ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
[Qgis-user] transfer single points from one point-layer to another?
Hello list :-) is it possible to transfer a certain amount of points from one project to another? Together with all the informations? Many regards, Stef ___ Qgis-user mailing list Qgis-user@lists.osgeo.org List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
Re: [QGIS-it-user] Manualistica e moduli avanzati
Buongiorno scusate il ritardo ma ho chiesto se possibile inoltrare gli appunti del corso. Eccoli qui http://www.geolab.polimi.it/copernicus-e-la-gestione-intelligente-delle-aree-urbane/ Alberto Il giorno ven 20 nov 2020 alle ore 09:46 luca barbadoro < luca.barbad...@gmail.com> ha scritto: > Ciao, > > se possibile sarei interessato anche io alle slides e appunti su webinar > per utilizzo Copernicus Climate Data Store. > > sempre sul tema sto raccogliendo del materiale (in parte relativo a QGIS) > da altri webinars, > > ad esempio sto seguento quelli della NASA: > > > https://appliedsciences.nasa.gov/join-mission/training/english/satellite-remote-sensing-urban-heat-islands > > ed ho trovato utile sul tema LCZ il progetto http://www.wudapt.org/ > (sezione Create LCZ Training Areas) > > > sarebbe interessante trovare un "contenitore" per poter condividere le > varie info sul tema Remote Sensing e strumenti utili qgis o comunque Open > Spurce (che è veramente un tema ampio) > > > Luca Barbadoro > __ > > Phone: 3337492444 > E-mail: luca.barbad...@gmail.com > Skype: lucabarbadoro > __ > > Il 20/11/20 09:10, Studio Multiservice s.s. ha scritto: > > Copernicus Climate Data Store > > ___ > QGIS-it-user mailing list > QGIS-it-user@lists.osgeo.org > https://lists.osgeo.org/mailman/listinfo/qgis-it-user > ___ QGIS-it-user mailing list QGIS-it-user@lists.osgeo.org https://lists.osgeo.org/mailman/listinfo/qgis-it-user
